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Finding the Fourth Proportional to 69,602.64, 96,057.70 and 39,397.66

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Solution

The fourth proportional to 69,602.64, 96,057.70 and 39,397.66 is: 54,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,602.64 : 96,057.70 = 39,397.66 : x
  2. Step 2: Convert to fraction form
    69,602.64/96,057.70 = 39,397.66/x
  3. Step 3: Cross multiply
    69,602.64x = 96,057.70 × 39,397.66
  4. Step 4: Simplify right side
    69,602.64x = 3,784,448,604.98
  5. Step 5: Solve for x
    x = 3,784,448,604.98/69,602.64
  6. Step 6: Final answer
    x = 54,372.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.